Mazda CX 7. Manual — part 295
![](/vehicles/rke/eetan/dot/rere.png)
CONTROL SYSTEM
07-40–5
07-40
POWER METAL OXIDE SEMICONDUCTOR FIELD EFFECT TRANSISTOR (POWER MOS FET) INSPECTION
id074000800300
1. Verify that the resistance between the terminals of
the power MOS FET is as shown in the table.
• If there is any malfunction, replace the power
MOS FET.
End Of Sie
WM: MAGNETIC CLUTCH
MAGNETIC CLUTCH DISASSEMBLY/ASSEMBLY
id074000800400
1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of disassembly.
3. Adjust the magnetic clutch clearance. (See 07-40-
6 MAGNETIC CLUTCH ADJUSTMENT.)
Bolt Removal/Installation Note
1. When removing or installing the bolt, hold the
pressure plate in place as shown in the figure.
2. When installing a new A/C compressor body,
replace the bolt.
Stator and Thermal Protector Removal Note
1. After removing the stator and thermal protector, completely remove the silicone adhering to the A/C
compressor side.
Tester lead
Resistance (kilohm)
+
−
A
B
∞
A
E
6.9
B
A
Continuity
B
E
Continuity
E
A
6.9
E
B
∞
B
E
A
A
B
E
*
*
*
4.7 KILOHMS
2.2 KILOHMS
1 KILOHM
acxuuw00000717
1
Bolt
(See 07-40-5 Bolt Removal/Installation Note.)
2
Pressure plate
3
Shim
4
Snap ring
(See 07-40-6 Snap Ring Installation Note.)
5
A/C compressor pulley
6
Screw
(See 07-40-6 Screw Installation Note.)
7
Clamp
(See 07-40-6 Clamp Installation Note.)
8
Screw
(See 07-40-6 Screw Installation Note.)
9
Stator and thermal protector
(See 07-40-5 Stator and Thermal Protector
Removal Note.)
(See 07-40-6 Stator and Thermal Protector
Installation Note.)
10
A/C compressor body
N·m {kgf·m, ft·lbf}
9
8
7
5
4
3
1
2
10
6
15 {1.5, 11}
A
A
acxuuw00000778
A/C COMPRESSOR
BOLT
acxuuw00002309
1871-1U-06B(07-40).fm 5 ページ 2006年3月16日 木曜日 午後4時1分
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CONTROL SYSTEM
07-40–6
Stator and Thermal Protector Installation Note
1. Apply approx. 1 g {0.04 oz} of silicone (Shin-Etsu
Silicone KE-347W or similar) to the contact
surface of the thermal protector, then thoroughly
install it onto the A/C compressor, leaving no
gaps.
Screw Installation Note
1. When installing a new stator and thermal protector, replace the screw.
Clamp Installation Note
1. When installing a new stator and thermal protector, replace the clamp.
Snap Ring Installation Note
1. When installing a new pressure plate, A/C
compressor pulley, stator, or A/C compressor
body, replace the snap ring.
End Of Sie
MAGNETIC CLUTCH ADJUSTMENT
id074000800500
1. Measure the clearance around the entire
circumference between the pressure plate and A/
C compressor pulley using a thickness gauge.
2. Verify that the clearance is within the
specification.
• If not within the specification, remove the
pressure plate and adjust the clearance by
changing the shim (0.2 mm {0.008 in}, 0.5
mm {0.02 in}) or the number of shims.
Magnetic clutch clearance
0.3— 0.5 mm {0.012— 0.019 in}
End Of Sie
SILICONE
SEALANT
acxuuw00002310
SNAP RING
SHAFT
A/C COMPRESSOR
PULLEY
acxuuw00002311
A/C COMPRESSOR
PULLEY
PRESSURE PLATE
acxuuw00001569
SHIM
A/C COMPRESSOR
acxuuw00001570
1871-1U-06B(07-40).fm 6 ページ 2006年3月16日 木曜日 午後4時1分
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CONTROL SYSTEM
07-40–7
07-40
MAGNETIC CLUTCH INSPECTION
id074000800600
1. Connect battery positive voltage to terminal A of
magnetic clutch and ground to A/C compressor
body.
2. Verify that the magnetic clutch operates.
• If there is any malfunction, replace the stator
and thermal protector.
End Of Sie
WM: RESISTOR
RESISTOR REMOVAL/INSTALLATION
id074000800700
1. Disconnect the negative battery cable.
2. Remove the glove compartment. (See 07-40-7 RESISTOR REMOVAL/INSTALLATION.)
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
End Of Sie
RESISTOR INSPECTION
id074000800800
1. Verify that the resistance between the terminals of
the resistor is as shown in the table.
• If not as specified, replace the resistor.
End Of Sie
WM: BLOWER MOTOR
+
-
A6E8540W015
A
A
A6E8540W016
1
Resistor connector
2
Resistor
1
2
acxuuw00000718
Terminal
Resistance (ohm)
A— D
0.22
A— B
0.87
A— C
2.76
D
B
A
C
A
B
C
D
0.22 OHM
0.65 OHM
1.89 OHMS
acxuuw00000977
1871-1U-06B(07-40).fm 7 ページ 2006年3月16日 木曜日 午後4時1分
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CONTROL SYSTEM
07-40–8
BLOWER MOTOR REMOVAL/INSTALLATION
id074000800900
1. Disconnect the negative battery cable.
2. Remove the dashboard under cover (passenger’s side).
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
End Of Sie
BLOWER MOTOR INSPECTION
id074000801000
1. Connect battery positive voltage to terminal B and
ground to terminal A of the blower motor and
verify its operation.
• If not as specified, replace the blower motor.
End Of Sie
WM: EVAPORATOR TEMPERATURE SENSOR
EVAPORATOR TEMPERATURE SENSOR REMOVAL/INSTALLATION
id074000801100
1. Remove the evaporator temperature sensor from the A/C unit. (See 07-11-4 A/C UNIT DISASSEMBLY/
ASSEMBLY.)
End Of Sie
1
Blower motor connector
2
Blower motor
1
2
acxuuw00000720
M
A
B
A
B
acxuuw00000721
1871-1U-06B(07-40).fm 8 ページ 2006年3月16日 木曜日 午後4時1分
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